PURPOSE: To keep an angle of a picture to be taken constant regardless of the movement of a focusing lens by providing a correction optical system to correct the angle of the picture to be taken varying with the movement of the focusing lens.

CONSTITUTION: When the diopter of an eye 31 to be inspected differs, for example, it is +10 diopter, the position of forming a first eyegrounds image 42 approaches a photographing stop 33 and a focusing lens 34 moves in the direction of approaching of the position. A correction optical system 46 comprising a compensator lens 47, a variator lens 48 and a fixed lens 49 is provided between the focusing lens 34 and a field stop 35. The compensator lens 47 is moved in the direction of going away from the focusing lens 34 as the diopter of the eye 31 to be inspected grows in the way, positive or negative, based on the position N at which the diopter of the eye 31 to be is zero. The variator lens 48 is moved in the direction of approaching the focusing lens 34 based on the position N' when the dioptor of the eve 31 to be inspected is positive and in the direction of going away temporarily therefrom when it is negative. As a result, the angle α0 of the picture to be taken is corrected thereby enabling the keeping of the photographing magnification constant.